body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  font-family: sans-serif;
  background:
    radial-gradient(circle at top, rgba(0, 123, 255, 0.12), transparent 34%),
    linear-gradient(180deg, #f8fbff 0%, #eef3f9 100%);
  color: #1f2933;
}

main {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

footer {
  text-align: center;
  margin-top: auto;
  padding: 1.5rem 1rem 2rem;
  color: #667085;
}

p {
  margin: 1rem 0 0;
  max-width: 34rem;
  line-height: 1.7;
  color: #475467;
}

a {
  color: #0b69ff;
  text-underline-offset: 0.2em;
  font-weight: 600;
}

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.05;
  color: #0f172a;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 5%;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(16px);
  box-shadow: 0 2px 18px rgba(15, 23, 42, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: #475467;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: #0b69ff;
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1rem;
  margin-top: 1.75rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 1.1rem 1.15rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #0f172a;
  border-radius: 1rem;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid rgba(148, 163, 184, 0.25);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.1);
  border-color: rgba(11, 105, 255, 0.28);
}

.contact-icon {
  width: 1.1rem;
  height: 1.1rem;
  object-fit: contain;
  border-radius: 0.2rem;
}

@media (max-width: 640px) {
  main {
    justify-content: center;
    align-items: center;
    padding: 2rem 1rem 3rem;
  }

  .navbar {
    padding: 1rem;
  }

  .nav-links {
    gap: 1rem;
  }

  .contact-links {
    grid-template-columns: 1fr;
  }
}